Paper
11 March 2002 Performance data of a new 248-nm CD metrology tool proved on COG reticles and PSMs
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Abstract
A new CD metrology system with 248 nanometer illumination is the subject of this paper. The system configuration and major component improvements is described. Test measurements on chrome-on-glass and attenuated phase shift masks were performed demonstrating improved CD linearity down to approximately 300 nm and long term repeatability performance in the 2 nm realm.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gerhard W.B. Schlueter, Walter Steinberg, and John M. Whittey "Performance data of a new 248-nm CD metrology tool proved on COG reticles and PSMs", Proc. SPIE 4562, 21st Annual BACUS Symposium on Photomask Technology, (11 March 2002); https://doi.org/10.1117/12.458314
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Cited by 3 scholarly publications.
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KEYWORDS
Deep ultraviolet

Critical dimension metrology

Optical resolution

Objectives

Reticles

Optical testing

Ultraviolet radiation

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